Date registered: Dec 2013
Vehicle: 2003 E320 211
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
E320 211 seat draining battery help
2003 E320 4 door
Short story is: there is a 2.2 amp drain on my battery when fuse 34 is in place & when the network should be asleep. If I pull fuse 34 I have 80 ma draw and no driver seat action.
I would like to avoid the dealership and I have no present ability to scan. I would like to see if I can solve this by process of elimination and logic. If not I will by a Benz scanner$$$$ but first I must try. I can diagnose and solve electrical problems, I do it for a living in the form of building HVAC controls. I have moved from a W126 to this W211 and have no previous experience with this car so please help.
I suspect that the controller to the driver's seat's motors is the drain or something is goofed with it. I have found that if I pull CAN out of the module the un-wanted draw will go away in about 4 Min
1 Can you tell me exactly how to remove this module? I am too old to get under the seat more then twice a day it takes too much Advil.
2 Is the passenger seat adjustment controller the same? PNs are different but can controllers be swapped? If so I plan to swap parts to see if it is the controller or a network issue? Will the drivers side controller react in the passenger position from the drivers hand control? I can prove the issue if this can be done. If not I will just figure out how to analyze it some other way.
3 Is there any concern about driving this car with the f34 fuse pulled? I am afraid it could supply Volt source to other points then just this seat.
4 Any other ideas could help?
Thanks in advance for any help or smart cracks given, Bruce
Last edited by brujan; 12-25-2013 at 09:14 AM.
Reason: new information discovered (up date)